43.99.Z - Other specialised construction activities not elsewhere classified
25.11.Z - Manufacture of metal structures and parts of structures
25.62.Z - Mechanical working of metal elements
41.20.Z - Building works related to erection of residential and non-residential buildings
42.13.Z - Works related to construction of bridges and tunnels
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.22.Z - Works related to construction of telecommunications and electricity lines
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.22.Z - Plumbing, heat and air-conditioning installation
43.39.Z - Other building completion and finishing
43.91.Z - Roofing activities
47.91.Z - Retail sale via mail order houses or via internet